ProfScope vs Changelo

PerfScope 是一款专为 iPhone 设计的设备性能实时监控工具。通过直观的仪表盘，清晰呈现设备各项性能指标，帮助你随时掌握 iPhone 的运行状态。 核心功能 仪表盘总览 • 卡片式布局，一屏展示所有关键性能指标 • 实时刷新数据，动态感知设备状态 • 点击任意卡片，深入查看详细信息 CPU 监控 • 实时显示 CPU 总体使用率 • 逐核负载图，精确掌握每个核心的使用情况 • 历史趋势折线图，直观分析性能变化 • 显示芯片型号、CPU 核心数及架构信息 内存监控 • 实时内存使用率与已用/总容量 • 内存用量历史趋势图 电池监控 • 精确到 0.1% 的电量显示（估算值） • 充电状态检测：充电中、已充满、未插电 • 低电量模式状态提示 • 设备热状态监控：正常、一般、严重、极高 网络监控 • 实时下载与上传网速，历史速率图表 • 当前连接类型（Wi-Fi / 蜂窝网络）及蜂窝技术标准 • IPv4 / IPv6 地址查看 • 网络延迟测试，支持自定义 Ping 目标（Google、Cloudflare、Apple 等） 存储监控 • 存储使用率与可用空间实时显示 屏幕信息 • 当前屏幕帧率（FPS）实时显示 • 屏幕分辨率信息 摄像头信息 • 设备摄像头数量与配置 • 主摄最大照片分辨率 传感器数据 • 加速度计：X/Y/Z 轴实时数值与历史图表 • 陀螺仪：X/Y/Z 轴实时数值与历史图表 • 磁力计：X/Y/Z 轴实时数值与历史图表 • 气压计：大气压强与相对海拔高度（支持设备） 设备信息 • 设备型号与市场名称 • 芯片型号、CPU 核心数、GPU 核心数、架构 • iOS 版本与内核版本 • 主机名、系统运行时间、上次开机时间 • 物理内存容量 隐私与安全 • 所有数据仅在本地设备运行，从不上传 • 无需注册账号，无需网络连接 • 不收集、不存储任何个人信息 • 完全离线可用 技术规格 • 需要 iOS 17.0 或更高版本 • 支持 iPhone • 无需网络连接 • 多语言支持

Changelo answers one question: what changed? Instead of showing you a wall of technical diff, Changelo compares two versions of a file — or two whole folders — and explains the difference the way a person would: • "Only the photo's metadata changed — the image itself is untouched." • "One page was added and two paragraphs were edited." • "Probably a new build of the app: the version increased and two localizations were added." • "The data is identical — the file was merely re-saved." HOW IT WORKS Pick or drop two items, and in seconds you get a verdict in plain language, the reasons behind it, and a detailed list of changes. The visual, side-by-side diff is always one tap away — but only when you want it. UNDERSTANDS YOUR FILES Changelo doesn't compare bytes; it understands formats. A PDF is pages, paragraphs and annotations. A photo is pixels, EXIF and a color profile. A folder is a tree of files. An app is versions, frameworks and localizations. Supported today: plain text, JSON, plist, XML, YAML, CSV, Markdown, photos (JPEG, PNG, HEIC and more), PDF, folders, ZIP archives, SQLite databases, app bundles (.app, .ipa), disk images, and video metadata (QuickTime). SMART, NOT MAGIC Every answer comes from deterministic, verifiable analysis — no AI guessing. When a conclusion is heuristic, Changelo says so: verdicts are labeled Certain, Likely, or Possible. TRULY PRIVATE Changelo is 100% offline. No servers, no accounts, no analytics, no network access at all. Your files never leave your device. POWER FEATURES • Export a comparison as a Markdown or JSON report • Save results as .changelo documents and preview them with Quick Look • Add your own explanation rules • Deep-scan mode for very large files • Full localization into 15 languages